Notable Wednesday Option Activity: CNK, ON, NET

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Cinemark Holdings Inc (CNK), where a total volume of 10,650 contracts has been traded thus far today, a contract volume which is representative of approximately 1.1 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 43.5% of CNK's average daily trading volume over the past month, of 2.4 million shares..